Paper-folding machine



(No Model.)

W. DOW'NING. PAPER FOLDING MACHINE.

Patent ed Apr. 16, 1889.

11 Q a E 6 6 O A G jinesses. v [vi/622102" .QZJF/Wfiz 3&7

jays

N. FETEKS. Phmpimwgnpher. Wi hkgton. D. C.

UNITED STATES PATENT OFFICE.

WVELLINGTON DOIVNING, OF ERIE, PENNSYLVANIA.

PAPER-FOLDlN MACHINE.

SPECIFICATION forming part of Letters Patent No. 401,336, dated April 16, 1889. Application filed January 11,1888. Renewed February 23, 1889. Serial No. 301,592, (No model.)

To a'ZZ whom it may concern:

Be it known that I, WELLINGTON DowNINe, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Paper-Folding Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to paper-foldingmachines; and it consists in certain improvements in the construction thereof, as will be hereinafter fully set forth, and pointed out in the claims.

My invention relates particularly to that class of paper-folding machines in which there are two or more sets of folding-rollers which lie parallel with each other and deliver sheets from one to the other so that parallel folds can be made in succession in the passing sheets.

In using this class of machines it is often desirable to pass the sheet through one of the parallel sets of rollers without folding it. For example: Suppose the machine to be a fourfold machine, and that the two last sets of folding-rollers-to wit, the third and fourth setsare parallel; in this case the two last folds in thesheet will be parallel. In operating on such a machine it is often desirable to omit the last fold. To do this, of course the paper may be taken from the machine before it passes through the last set of rollers; but it is more convenient to let it pass through the last set of rollers and go to the packingbox; but if this is done it must pass through the last set of rollers without being folded, and to effect this the machine must be provided with special appliances for that purpose.

The chief object of this invention is to provide improved appliances for effecting the abovedescribed purpose. There are other minor features, which will be explained in place.

The invention is illustrated in the accompanying drawings, as follows:

Figure 1 is a side elevation of a fragment of a paper-folding machine, showing parts sufficient to illustrate my invention. Fig. 2 is substantially the same view as Fig. 1, but shows the machine adjusted to pass the sheets through the last set of folding-rollers without folding the same.

In the drawings I only show the two sets of folding-rollers which are parallel. These are represented to be the two last sets of rollers, but the first and second, or the second and third sets may be thus arranged, while the othersets will stand at right angles to the next preceding set, as is common in folding-machines.

My invention applies to any two successive sets of foldin g-rollerswhich are parallel to each other. It is not necessary to show any of the other sets of rollers to properly illustrate my invention.

In the drawings, A A A mark the framework of the machine, B B mark the packing-box, C marks the last folding blade or starter, and D D and D* D mark, respectively, the third and fourth sets of foldingrollers. These parts are constructed and arranged as commonly in machines having successive parallel folding-rollers.

Tapes (1 carry the papers from the rolls I) to the rolls D, and a tightener, (Z is applied to the under side of these tapes. On the upper side of the tapes I put idle-rollers d, which press upon the passing sheets and hold them firmly to the tapes so they will have a more positive movement with the tapes, and also so as to hold the forward part of the sheet well up so it will pass easily over the rollerD, which turns toward it. An upper guard, C1 is placed over the tapes, and on the opposite side of the rollers D there are lower guards, E, and upper guards, F, the latter also serving as stops and being adj ustably secured to the lower guards by clamps G.

\Vhen it is desired that the sheets shall pass between the rollers D without being folded, the guards F are removed and deflectors H are secured in their place, and the fourth starter-blade, C is thrown out of gear and held up out of the way.

The deflectors II are formed so as to turn the forward ends of the passing sheets down in between the rollers D*. This is clearly shown in Fig. 2, where it will be seen that the passing sheets will be deflected in between the rollers I) and will pass between those rollers without being folded, and will be delivered to the packing-box the same as sheets folded by said rollers.

sively, and the packing-box B B, in position to receive papers from the rollers D D, of the detachable deflectors H, made interchangeable with the detachable upper guards, F.

In testimony whereof I affix my signature in presence of tWo Witnesses.

\VELLINGTON DOVNING.

Vitnesses:

J NO. K. HALLOCK, W. B. FLICKINGER. 

